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1Sara Di Diego = "The three basic parts of a dharma wheel are the spokes, hub, and rim.When there are 8 spokes, as pictured here, they represent Eight-Fold Path, which is usually used to represent Buddhism. You can see the other types of wheels given their number of spokes here.The hub represents moral discipline.And the rim represents meditative concentration and mindfulness, which holds Buddhism together.Work Cited:http://buddhism.about.com/od/eightauspicioussymbols/a/The-Dharma-Wheel.htm"